If you have questions about property valuation and property tax, visit boco.org/2023Valuation.

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May 12, 2017

The deadline to file property value appeals is June 1

Property owners can file an appeal if they believe their property has not been valued appropriately based on market values as of June 30, 2016

Boulder County, Colo. - The Boulder
County Assessor’s Office would like to remind property owners that the deadline
to appeal their property values is Thursday, June 1.

Property owners can file an appeal
if they believe their property has not been valued appropriately. In order to
make the most accurate property value comparisons possible when filing an
appeal, property owners are asked to review and include information about sales
data for their real estate market as of mid-summer last year (specifically, on or before June 30,

Notices of Value were mailed to all
property owners in Boulder County on May 1. Actual property values for 2017
were based on market activity during the timeframe prior to June 30, 2016. Per
statutory requirements, these values do not represent market activity after
June 30, 2016.

Market Values are Up Along the Front Range

As many area residents are aware, real estate values have
been going up at a significant pace based on high demand for a limited supply
of properties for sale all across the Front Range. Since the last biennial
reappraisal in 2015, Boulder County has seen a high overall positive change in
values for residential properties reflecting this trend.


Since the June 30, 2016 market value assessment date, the real
estate market in Boulder County has continued at a strong pace. Residential
sales figures continue to rise, and many homeowners may find that their homes
are worth more today in the current real estate transaction market than assessments indicate from nearly a year ago. Commercial and Industrial
properties are also showing higher changes, from 20% and higher. Apartment
complexes have also seen similar increases to residential due to high occupancy
and rental rates.

How to File an Appeal

Appeals may be made by online, by mail, by fax or in person.
All appeals, regardless of valuation method, must be filed or postmarked by
11:59 p.m. on June 1. In-person appeals must be filed at the Assessor’s Office
by 5 p.m. on June 1.

For taxpayers who choose to appeal
online at www.BoulderCountyAssessor.org, there are new tools available
to help research sales and attach comparables to their appeals.

For in-person appeals, three
drop-in locations awww.BoulderCountyAssessor.orgre available: (Note: some have limited dates and hours of operation.)

  1. Boulder – Main Office: Downtown Courthouse, 2nd Floor – Assessor’s Office, 1325 Pearl St, Boulder. 8 a.m. to 5 p.m., Monday-Friday (office will be closed
    for Memorial Day on Monday, May 29)
  2. Boulder – South Boulder: George Reynolds Branch Library, 3595 Table Mesa Dr., Boulder. May 22 and May 26, 12:30
    p.m. to 4:30 p.m.
  3. Longmont: St. Vrain Community Hub, St. Vrain Conference Room, 529 Coffman St., Longmont. Residential - May 15 -19, May 22 - 26; Commercial - May 17 and 24; 8
    a.m. to 4:30 p.m.

owners with questions about their valuation (or their Notice of Value), can
contact the Boulder County Assessor’s Office by:

  • Phone: 303-441-3530
    (appeals cannot be accepted over the phone)
  • Email (via the website): www.BoulderCountyAssessor.org
  • Mail: P.O. Box 471,
    Boulder, CO 80306
  • Fax: 303-441-4996
  • In person at the Boulder
    County Courthouse, second floor, 1325 Pearl St., Boulder, 8 a.m. to 5 p.m., Monday-Friday
    (office will be closed for Memorial Day on Monday, May 29) or at one of the
    locations listed above.

Programs for Seniors and Disabled Veterans

owners who are 65 or older, and have owned and lived in their home for the past
10 years as of January 1, may be eligible for the Senior Property Tax Exemption
Program. Disabled Veterans may also qualify for the exemption. More information is available at: https://bouldercounty.gov/property-and-land/assessor/senior-exemption/. The deadline to submit an application is July 15.

Additional information about property values, remote appeals dates and locations, and the county’s appraisal process is available at www.BoulderCountyAssessor.org.

Please note: The County Assessor does not set the rate of or collect property taxes. Property taxes are calculated based on a property's location and its assessed value. For every address, there is a corresponding formula of taxing entities that receive property taxes from that address. These taxing entities include school districts, cities, towns, Boulder County, fire protection districts, water districts, and other property-related services. In total, 88 taxing entities receive property tax distributions in Boulder County. The individual mill levy (or, tax rate) for each of these entities is set annually by the end of the calendar year. The Boulder County Treasurer collects taxes due for the previous year within the first six months of the new year. See Your Taxes at Work for more information.

Related: Assessor’s Office mails Notices of Value to all property owners on May 1